Safety device for firearms.



A. MLLER.

SAFETY DEVICE FOR FIREARMS.

APPLIOATION PILEDOCT. 4, 1911.

1,058,887. Patented Apr. 15, 1913.

In/ventor /f//M' 22pm Attorney cuLuMmA PLANOORAPH co.. wsHxNa'roN. D. c,

UNITED STATES PATENT OFFICE.

ALFRED MLLER, OF CHARLOTTENBURG, GERMANY.

SAFETY DEVICE FOR FIREARMS.

To all whom t may concern:

Be it known that I, ALFRED MLLER, retired major, a subject of the Kingof Prussia, residing at No. 95 Berlinerstrasse, Chan.

a pressure rod acted upon by the trigger engages in the correct positionof elevation or depression of the weapon so that the trigger can bedrawn back while in other cases engagement between the pressure rod andthe locking member is not possible so that the weapon cannot be fired.In this known firing mechanism the adjustment of the mechanism for agiven aiming position is attained by adjusting the weight or pendulumrelatively to the locking member in which case it was possible toutilize the weight or pendulum itself for ascertaining the requiredangle The device serving for this` purpose was not very practical,however, andv on a fixed scale.

the adjustment was very troublesome to effect as a separate scale on thelocking member was necessary.

The present invention has for its object to greatly simplify theadjustment of the lock-` ing device for the aiming position of theweapon for the time being while rendering it more exact and the entiremechanism is constructed in such a manner that in actual use in the eldthe weapon provided with it will` always act reliably. This result isattained owing to the fact that the weight or pendulum and stop memberare formed as separate elements which are connected one with the otherby tooth and worm gear, a locking device being provided for theoscillating parts such that when the stop member has been locked withits recess in engagement with the pressure rod, by the convenientrotation of a knobor the like the adjustment o-f the weight or pendulumrelatively to the arm corresponding to a given aiming position can beeffected on a single fixed scale. It is :also possible by releasing thelocking device to allow the pendulum to rock freely with the stop memberand to employ the pendulum directly for reading the necessary ad-Speccaton of letters Patent.

l Application led October 4, 1911.

Patented Apr. 15, 1913. SeriaI No. 652,829.

just-ment with a given aiming position of the weapon.

The firing mechanism is illustrated in the accompanying drawing inwhich- Figure l represents an elevation with the locking device releasedand with the adjustment for a given aiming position of the weaponascertained by the oscillations of the pendulum. Fig. 2 is a similarview with locked locking and pendulum device, and Fig. 3 is a crosssection on the line A B in Fig. l.

The firing mechanism consists of the pen- .dulum a the locking arm andthe pressure rod c acted upon by the trigger. The pendulum a and arm bare formed as separate parts and rotatably mounted on a pivot ,al iXedin the stock. The locking arm b is rigidly connected with the worm wheele and the gear wheel f with the knot g so that these parts are able torotate freely and independently of each other on the pivot ci. The gearwheel L, the worm z', the worm wheel j and the worm 7c are mounted onthe pendulum a. The parts are mounted in such a manner that the gearwheel f of the locking arm b engages with the gear wheel h of thependulum, the worm z with the lworm wheel y' and the worm lf; of thependulum with the worm wheel ofthe locking arm b.

This arm is provided in the known manner with a recess Z in which theflattened end of the pressure rod c is able to engage. In the cavity inthe'stock of the weapon: which contains the mechanism a locking lever mis rotatably mounted and by means of an adjusting lever 'n operated fromthe eXteriorit can be set. in the three positions influencing thelocking arm b. At the lower part a scale 0 is iiXed over the cavity inthe stock and comprises a slot in which a pin p mounted on the pendulumis engaged.

The operationr of theiiring mechanism is as follows: In shooting at atarget of any kind in the first place the distance is estimated and whenthe sight has been adjusted the aiming position is assumed in which theadjusting lever n and also. the locking lever mconnected with it arelocated in the Vposition indicated in firm lines in'Fig. l and thependulum a is able to oscillate freely with the arm b. Nowfassumingthatwhen the the elevation shown in Fig. l the pendulum Awhich always hangsvertically will have V.the

line on its index pin p on theJ number 25 on the fixed scale 0 on thestock. This number is indicated to the other marksmen Where upon thefiring mechanism of the lire-arms is fixed by changing the sightinglever from the position I into the position III (Fig. 2) so that therecess Z in the locking arm b lies exactly opposite the end of thepressure rod c. In this position the mechanism is immovably locked bythe engagement of the ,pin r provided on the locking arm Z) in a recessin the locking lever m. By suitably rotating the outwardly protrudingknob g the pendulum a is displaced in the direct-ion indicated by thearrow in Fig. 2 by the intermediary of the interposed tooth and Wormgear until the line on its index pin Z9 is exactly set on the number 25of the scale. The setting lever n is then caused to occupy the positionII (Fig. l) and the locking lever m assumes such a position that thependulum a and the locking arm Z) are again released and able tooscillate. It Will be understood that in this position the locking arm4b and the pendulum are retained in fixed relation after adjustment ofthe latter by the friction of the gearing e, j", h, i, j, f: by whichthese parts are connected. The magnitude of the angle of oscillation isrelatively small if the recess in the locking lever m is suitably formed(approximately 2O) so that in assuming the firing position excessiverocking to and fro of the pendulum is prevented so that it comes to restmore speedily on reaching the correct aiming position of the fire-arm.When this is so and the locking arm b occupies the position indicated inbroken lines in Fig. 1 the pressure rod o Which is acted upon by themarksman by pressing the trigger is able to enter the recess in thelocking arm b which is now situated opposite to it and the Weapon can beAtired.

The entire mechanism which is arranged in the stock is coveredexternally by a plate s provided With apertures for the passage of theknob g and the setting lever n and also With an inspection aperture forthe scale, all these apertures being readily and conveniently closed andexposed by the means of slides What I claim and desire to secure byLetters Patent of the United States is:

l. In a fire-arm, the combination of a trigger, a trigger rod, apendulum, a locking arm adapted to permit movement of said rod in adetermined position of the lire-arm, gearing connecting said pendulumand said locking arm and adapted to effect a change of position of theone relative to the other and to maintain said pendulum and said lockingarm in such adjusted positions.

2. In a re-arm, the combination of a trigger, a trigger rod, a pendulum,a rotatably mounted locking arm adapted to permit movement of said rodin a determined position of the fire-arm, gearing connecting saidpendulum and said locking arm, for adjusting the position of saidpendulum relative to said locking arm when said arm is locked, a lockinglever adapted to hold the locking arm to change the relative positionthereof, and an adjusting lever to actuate said locking lever.

-3. In a fire-arm, the combination of a trigger, a trigger rod, apendulum, a rotatably mounted locking arm formed with a recess adaptedto permit movement of said trigger rod in a determined position of thefire-arm, gearing connecting said pendulum and said locking arm, arecessed locking lever adapted to hold said locking arm. a manuallyadjustable lever adapted to actuate .said lockingv lever, and a pin onsaid locking arm adapted to be engaged by the recess in said lockinglever.

4. In a fire-arm, the combination of a trigger, a trigger rod, Weightedmeans, locking means, gearing connecting said locking means and saidWeighted means and adapted to effect a change of position of the onemeans relative to the other means, means adapted to act on said lockingmeans to change the position thereof relative to the Weighted means, andmeans adapted to lock said locking means When engaged by said triggerrod in the free position of said trigger.

.5. In a fire-arm, the combination of a trigger, a trigger rod, Weightedmeans, locking means adjustable relative to said Weight-- ed means andWith Which said trigger rod can engage in a determined position of thetire-arm to allow the trigger to be actuated, gearing connecting saidWeighted means and said locking means, and means adapted to coperatewith said locking means to conne the movements thereof.

.6. In a fire-arm, the combination of a trigger, a trigger rod, Weightedmeans, locking means adjustable relative to said Weighted means andadapted to permit movement of said trigger rod in a determined positionof the fire-arm, gearing connecting Said Weighted means and said lockingmeans,

means adapted to act on said locking means to adjust the positionthereof, and means to lock the locking means after such adjustment hasbeen effected.

7. In a fire-arm, the combination of a trigger, a trigger rod, co-actingwith said trigger, Weighted means, locking means adjustable relative tosaid Weighted means and adapted topermit movement of said trigger rod ina determined position of the tire-arm, and gearing connecting saidWeighted means and said locking means and adapted to maintain saidWeighted means and said locking means in determined relative positions.

8. In a fire-arm, the combination of a trigger, a trigger rod, Weightedmeans, locking means adjustable relative to said Weighted means andadapted to permit movement of said trigger rod in a determined posit-ionof the tire-arm, and gearing connecting said Weighted means and saidlooking means and adapted to allow of a change of the relative positionsof said Weighted means and said locking means and to maintain suchrelative positions after an adjustment has been eifected.

9. In a fire-arm, the combination of a trigger, a trigger rod, Weightedmeans, locking means adjustable relative to said Weighted means andadapted to permit movement of said trigger rod in a determined positionof the fire-arm, gearing connecting said Weighted means and said lockingmeans and adapted to maintain said Weighted means and said looking meansin determined relative positions, and means adapted to hold said lookingmeans during an adjustment of said Weighted means relative to saidlocking means.

In testimony whereof I have aiiixed my signature in presence of tWoWitnesses.

ALFRED MULLER. Witnesses:

ROBERT MICHAL-siii, HENRY HASPER.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

